noun (n)

• a small rectangular free-reed instrument having a row of free reeds set back in air holes and played by blowing into the desired hole(noun.artifact)

  Synonym:
  harp, mouth harp, mouth organ
  

  source: wordnet30
• A musical instrument, consisting of a series of hemispherical glasses which, by touching the edges with the dampened finger, give forth the tones.(noun)

  source: webster1913